Chapter 4
AT7-MAX2
4-16
DRAM Burst Length
DDR SDRAM modules provide a Burst mode that means an auto precharge function for programmable
READ or WRITE burst lengths of 2, 4 or 8 locations.
This means that if we set burst length to 8, the address bus will acesss 8 bytes each cycle to precharge,
etc.
DRAM Queue Depth:
Three options are available: 2 Level
4 Level
3 level. The default setting is
4 Level
. This item sets
DRAM queue depth to accommodate maximum memory throughput.
DQS Drive Strength:
Four options are available: Auto
Low
Medium
High. The default setting is
Auto
. This item can
adjust the DQS signal drive strength for data sent to DDR SDRAM. More DDR SDRAM DIMM installed,
you may set it to
High
.
DDR DQS Input Delay:
Two options are available: Auto or Manual. The default setting is
Auto
. If you set to
Manual
, then the
next item will be available.
Input Delay Value:
This item allows you to adjust the data input strobe delay time of memory. You can key in the HEX
number into this section. The minimum number is 0000, and maximum number is 00FF.
DDR DQS Output Delay:
Two options are available: Auto or Manual. The default setting is
Auto
. If you set to
Manual
, then the
next item will be available.
Output Delay Value:
This item allows you to adjust the data output strobe delay time of memory. You can key in the HEX
number into this section. The minimum number is 0000, and maximum number is 00FF.
MD Drive Strength:
Two options are available: Auto or Manual. The default setting is
Auto
. If you set to
Manual
, then the
next item will be available.
Drive Value:
This item allows you to adjust the memory data drive strength. You can key in the HEX number into
this section. The minimum number is 0000, and maximum number is 00FF.
DIMM1-4 CMD Drive Control:
Two options are available: Auto or Manual. The default setting is
Auto
. This item can allow you to use
auto or manual method to control the DIMM1 to DIMM4 command drive strength. If you set to
Manual
,
then the next item will be available.
Summary of Contents for AB-AT7-MAX2
Page 2: ......
Page 34: ...Chapter 2 AT7 MAX2 2 6 ...
Page 54: ...Chapter 3 AT7 MAX2 3 20 ...
Page 94: ...Chapter 5 AT7 MAX2 5 6 ...
Page 98: ...Chapter 6 AT7 MAX2 6 4 ...
Page 102: ...7 4 Chapter 7 AT7 MAX2 ...
Page 106: ...A 4 Appendix A AT7 MAX2 ...
Page 110: ...Appendix B AT7 MAX2 B 4 ...
Page 118: ...Appendix D AT7 MAX2 D 4 ...
Page 122: ...Appendix E AT7 MAX2 E 4 ...
Page 136: ...H 4 Appendix H AT7 MAX2 ...